Perhaps you should try some spelling variations:
sharing risk » sharing best, during risk
cost sharing » risk sharing, cost savings
zhang ping » zhang ming, zhang jing, zhang ying
zhang ting » zhang ming, zhang jing, zhang ying
risk cong » risk coping, risk among, risk along
zhu cost » eu cost

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((zhang ping) OR (zhang ting)) zhu cost sharing risk cong shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((zhang ping) or (zhang ting)) zhu cost sharing risk cong shu ;*.